> The article mentions that 40% of CP investigations in Germany are started against minors (implied: through sexting), which shows that this concern is not purely theoretical at all.

I've read news about this. Teenager sends nude photos to her boyfriend, calls the cops after the break up and they proceed to nearly ruin his life by threatening lifetime sex offender registration. The implication that the girl produced and distributed child pornography of herself is never even mentioned.

It's completely insane.